Table 1 The number of feather mite species (prevalence—P %; mean and total species number; estimates for diversity) found on each seabird species and sampling site/area in the north-east Atlantic Ocean and Mediterranean Sea (N1 = number of examined birds, N2 = number of infested birds).

From: Diversity and structure of feather mite communities on seabirds from the north–east Atlantic and Mediterranean Sea

Bird species

Sampling site/area

N1

N2

Overall P % (N2/N1%) (95%CI)

Number of mite species/ individual (mean ± SD)

Total number of mite species

Whittaker (beta diversity)

Bulweria bulwerii

Azores Is

17

11

64.7 (40.6–83.4)

0.7 ± 0.6

2

0.8

Canary Is

6

4

66.7 (27.1–93.7)

1.2 ± 1.0

6

2.4

Cape Verde

81

53

65.4 (54.3–75.4)

1.2 ± 1.2

8

3.2

Total

104

68

65.4 (55.8–74.1)

1.1 ± 1.2

8

3.6

Calonectris borealis*

Almeria

12

12

100.0 (75.5–100.0)

1.3 ± 0.5

3

1.3

Azores Is

98

98

100.0 (96.1–100.0)

1.7 ± 1.0

9

4.2

Berlengas

16

16

100.0 (79.1–100.0)

2.3 ± 1.2

7

2.0

Canary Is

50

50

100.0 (92.5–100.0)

2.0 ± 1.0

7

2.5

Madeira

34

34

100.0 (90.2–100.0)

2.1 ± 1.2

8

2.8

Total

210

210

100.0 (98.2–100.0)

1.9 ± 1.1

9

3.8

Calonectris diomedea*

Balearic Is

37

37

100.0 (90.9–100.0)

1.8 ± 1.0

5

1.7

Creta

5

5

100.0 (50.0–100.0)

2.2 ± 0.8

4

0.8

Hyeres

4

4

100.0 (48.3–100.0)

1.8 ± 0.5

3

0.7

Murcia

9

9

100.0 (67.7–100.0)

1.7 ± 0.7

4

1.4

Zembra

15

15

100.0 (77.8–100.0)

1.9 ± 0.6

5

1.7

Total

70

70

100.0 (94.6–100.0)

1.8 ± 0.9

5

1.7

Calonectris edwardsii

Cape Verde

64

59

92.2 (82.9–96.9)

2.8 ± 1.7

8

1.7

Hydrobates castro

Azores Is

9

9

100.0 (67.7–100.0)

1.0 ± 0.0

1

0.0

Berlengas

2

2

100.0 (22.4–100.0)

1.0 ± 0.0

2

1.0

Canary Is

1

1

100.0 (5.1–100.0)

1.0 ± 0.0

1

0.0

Cape Verde

241

96

39.8 (33.8–46.3)

0.6 ± 0.9

5

2.1

Madeira

6

6

100.0 (58.9–100.0)

1.2 ± 0.4

4

2.4

Total

259

114

44.0 (38.0–50.2)

0.7 ± 0.9

5

2.3

Puffinus baroli

Azores Is

19

13

63.3 (39.2–82.4)

2.2 ± 1.4

6

1.8

Canary Is

6

2

33.3 (6.3–72.9)

1.0 ± 1.7

4

0.3

Total

25

15

56.0 (35.8–74.4)

2.3 ± 1.4

6

1.6

Puffinus boydi

Cape Verde

58

42

72.4 (59.5–83.0)

1.7 ± 1.6

6

1.6

Puffinus puffinus

Heimaey

11

10

90.9 (59.7–99.5)

2.6 ± 1.9

6

1.1

Copeland

16

14

87.5 (62.8–97.7)

1.8 ± 1.2

5

1.4

Halival-Rum

5

5

100.0 (50.0–100.0)

3.2 ± 1.1

6

0.9

Total

32

29

90.6 (75.3–97.4)

2.3 ± 1.5

6

1.3

Puffinus yelkouan

Hyeres

29

25

86.2 (69.2–95.1)

1.5 ± 0.8

4

1.6

Pterodroma feae

Cape Verde

77

28

36.4 (26.0–48.0)

0.4 ± 0.6

3

1.7

  1. The two Calonectris species sampled by visual inspection are marked with *. The 100% prevalence found in both Calonectris species is an artifact due to the sampling method in which only infested feather were collected (see methods).
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